1506166565 has 8 divisors (see below), whose sum is σ = 1815363360. Its totient is φ = 1199624272.

The previous prime is 1506166531. The next prime is 1506166579. The reversal of 1506166565 is 5656616051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1506166565 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662375 + ... + 664644.

It is an arithmetic number, because the mean of its divisors is an integer number (226920420).

Almost surely, 2^1506166565 is an apocalyptic number.

It is an amenable number.

1506166565 is a deficient number, since it is larger than the sum of its proper divisors (309196795).

1506166565 is a wasteful number, since it uses less digits than its factorization.

1506166565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327251.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 1506166565 is about 38809.3618216018. The cubic root of 1506166565 is about 1146.2807544628.

The spelling of 1506166565 in words is "one billion, five hundred six million, one hundred sixty-six thousand, five hundred sixty-five".